[order] ACCIPITRIFORMES | [family] Accipitridae | [latin] Leucopternis schistaceus | [authority] Sundevall, 1851 | [UK] Slate-colored Hawk | [FR] Buse ardoisee | [DE] Schieferbussard | [ES] Busardo pizarrosso | [NL] Leigrijze buizerd
Members of the genus Leucopternis are small to medium-sized buteonine hawks with short and rounded wings and a moderate length tail. In some species the sides of the head are partly bare of feathers and brightly coloured, as are the legs. P1umage pattern is quite simple; immatures are similar to adults. This large genus is placed between Buteo and Buteogallus, and contains ten species, all tropical American.
The Slate-colored Hawk is a medium-sized, gray raptor of Amazonian forests. It resembles the closely-related Plumbeous Hawk (Leucopternis plumbeus) of the lowlands west of the Andes, but is larger and has dark rather than white underwing coverts. Both share overall slate-gray plumage, a single white subterminal tail band, an orange cere, and orange legs.
Listen to the sound of Slate-colored Hawk
Copyright remark: Most sounds derived from xeno-canto
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South America : Amazonia. It is found through much of the Amazon basin as well as the upper Orinoco drainage in Venezuela and Colombia.
The Slate-colored occurs in forest, often near water, and including gallery forest and mangroves
It appears to be a generalist forager, with recorded prey items including snakes, frogs, small monkeys, and birds. It is a sit-and-wait predator, and easily is overlooked when sitting at a favored perch within the forest.
Video Slate-colored Hawk
copyright: Josep del Hoyo
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size may be moderately small to large, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.